704 lines
19 KiB
Go
704 lines
19 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubectl
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import (
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"fmt"
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"reflect"
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"strings"
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"testing"
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"time"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/batch"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
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coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
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testcore "k8s.io/kubernetes/pkg/client/testing/core"
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deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
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)
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func TestReplicationControllerStop(t *testing.T) {
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name := "foo"
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ns := "default"
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tests := []struct {
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Name string
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Objs []runtime.Object
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StopError error
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ExpectedActions []string
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}{
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{
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Name: "OnlyOneRC",
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Objs: []runtime.Object{
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&api.ReplicationControllerList{ // LIST
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Items: []api.ReplicationController{
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1"}},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get", "list", "get", "update", "get", "delete"},
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},
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{
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Name: "NoOverlapping",
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Objs: []runtime.Object{
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&api.ReplicationControllerList{ // LIST
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Items: []api.ReplicationController{
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{
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ObjectMeta: api.ObjectMeta{
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Name: "baz",
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k3": "v3"}},
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},
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1"}},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get", "list", "get", "update", "get", "delete"},
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},
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{
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Name: "OverlappingError",
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Objs: []runtime.Object{
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&api.ReplicationControllerList{ // LIST
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Items: []api.ReplicationController{
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{
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ObjectMeta: api.ObjectMeta{
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Name: "baz",
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1", "k2": "v2"}},
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},
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1"}},
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},
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},
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},
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},
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StopError: fmt.Errorf("Detected overlapping controllers for rc foo: baz, please manage deletion individually with --cascade=false."),
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ExpectedActions: []string{"get", "list"},
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},
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{
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Name: "OverlappingButSafeDelete",
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Objs: []runtime.Object{
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&api.ReplicationControllerList{ // LIST
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Items: []api.ReplicationController{
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{
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ObjectMeta: api.ObjectMeta{
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Name: "baz",
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1", "k2": "v2", "k3": "v3"}},
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},
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{
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ObjectMeta: api.ObjectMeta{
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Name: "zaz",
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1"}},
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},
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1", "k2": "v2"}},
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},
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},
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},
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},
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StopError: fmt.Errorf("Detected overlapping controllers for rc foo: baz,zaz, please manage deletion individually with --cascade=false."),
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ExpectedActions: []string{"get", "list"},
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},
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{
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Name: "TwoExactMatchRCs",
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Objs: []runtime.Object{
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&api.ReplicationControllerList{ // LIST
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Items: []api.ReplicationController{
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{
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ObjectMeta: api.ObjectMeta{
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Name: "zaz",
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1"}},
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},
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 0,
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Selector: map[string]string{"k1": "v1"}},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get", "list", "delete"},
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},
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}
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for _, test := range tests {
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copiedForWatch, err := api.Scheme.Copy(test.Objs[0])
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if err != nil {
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t.Fatalf("%s unexpected error: %v", test.Name, err)
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}
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fake := fake.NewSimpleClientset(test.Objs...)
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fakeWatch := watch.NewFake()
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fake.PrependWatchReactor("replicationcontrollers", testcore.DefaultWatchReactor(fakeWatch, nil))
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go func() {
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fakeWatch.Add(copiedForWatch)
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}()
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reaper := ReplicationControllerReaper{fake.Core(), time.Millisecond, time.Millisecond}
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err = reaper.Stop(ns, name, 0, nil)
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if !reflect.DeepEqual(err, test.StopError) {
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t.Errorf("%s unexpected error: %v", test.Name, err)
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continue
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}
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actions := fake.Actions()
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if len(actions) != len(test.ExpectedActions) {
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t.Errorf("%s unexpected actions: %v, expected %d actions got %d", test.Name, actions, len(test.ExpectedActions), len(actions))
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continue
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}
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for i, verb := range test.ExpectedActions {
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if actions[i].GetResource().GroupResource() != api.Resource("replicationcontrollers") {
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t.Errorf("%s unexpected action: %+v, expected %s-replicationController", test.Name, actions[i], verb)
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}
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if actions[i].GetVerb() != verb {
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t.Errorf("%s unexpected action: %+v, expected %s-replicationController", test.Name, actions[i], verb)
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}
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}
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}
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}
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func TestReplicaSetStop(t *testing.T) {
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name := "foo"
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ns := "default"
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tests := []struct {
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Name string
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Objs []runtime.Object
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StopError error
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ExpectedActions []string
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}{
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{
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Name: "OnlyOneRS",
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Objs: []runtime.Object{
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&extensions.ReplicaSetList{ // LIST
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Items: []extensions.ReplicaSet{
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: 0,
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"k1": "v1"}},
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},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get", "get", "update", "get", "get", "delete"},
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},
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{
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Name: "NoOverlapping",
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Objs: []runtime.Object{
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&extensions.ReplicaSetList{ // LIST
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Items: []extensions.ReplicaSet{
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{
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ObjectMeta: api.ObjectMeta{
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Name: "baz",
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Namespace: ns,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: 0,
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"k3": "v3"}},
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},
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},
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: 0,
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"k1": "v1"}},
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},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get", "get", "update", "get", "get", "delete"},
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},
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// TODO: Implement tests for overlapping replica sets, similar to replication controllers,
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// when the overlapping checks are implemented for replica sets.
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}
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for _, test := range tests {
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fake := fake.NewSimpleClientset(test.Objs...)
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reaper := ReplicaSetReaper{fake.Extensions(), time.Millisecond, time.Millisecond}
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err := reaper.Stop(ns, name, 0, nil)
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if !reflect.DeepEqual(err, test.StopError) {
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t.Errorf("%s unexpected error: %v", test.Name, err)
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continue
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}
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actions := fake.Actions()
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if len(actions) != len(test.ExpectedActions) {
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t.Errorf("%s unexpected actions: %v, expected %d actions got %d", test.Name, actions, len(test.ExpectedActions), len(actions))
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continue
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}
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for i, verb := range test.ExpectedActions {
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if actions[i].GetResource().GroupResource() != extensions.Resource("replicasets") {
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t.Errorf("%s unexpected action: %+v, expected %s-replicaSet", test.Name, actions[i], verb)
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}
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if actions[i].GetVerb() != verb {
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t.Errorf("%s unexpected action: %+v, expected %s-replicaSet", test.Name, actions[i], verb)
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}
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}
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}
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}
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func TestJobStop(t *testing.T) {
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name := "foo"
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ns := "default"
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zero := int32(0)
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tests := []struct {
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Name string
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Objs []runtime.Object
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StopError error
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ExpectedActions []string
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}{
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{
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Name: "OnlyOneJob",
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Objs: []runtime.Object{
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&batch.JobList{ // LIST
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Items: []batch.Job{
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: batch.JobSpec{
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Parallelism: &zero,
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Selector: &metav1.LabelSelector{
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MatchLabels: map[string]string{"k1": "v1"},
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},
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},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get:jobs", "get:jobs", "update:jobs",
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"get:jobs", "get:jobs", "list:pods", "delete:jobs"},
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},
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{
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Name: "JobWithDeadPods",
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Objs: []runtime.Object{
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&batch.JobList{ // LIST
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Items: []batch.Job{
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: batch.JobSpec{
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Parallelism: &zero,
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Selector: &metav1.LabelSelector{
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MatchLabels: map[string]string{"k1": "v1"},
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},
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},
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},
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},
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},
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&api.PodList{ // LIST
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Items: []api.Pod{
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{
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ObjectMeta: api.ObjectMeta{
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Name: "pod1",
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Namespace: ns,
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Labels: map[string]string{"k1": "v1"},
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},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get:jobs", "get:jobs", "update:jobs",
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"get:jobs", "get:jobs", "list:pods", "delete:pods", "delete:jobs"},
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},
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}
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for _, test := range tests {
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fake := fake.NewSimpleClientset(test.Objs...)
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reaper := JobReaper{fake.Batch(), fake.Core(), time.Millisecond, time.Millisecond}
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err := reaper.Stop(ns, name, 0, nil)
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if !reflect.DeepEqual(err, test.StopError) {
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t.Errorf("%s unexpected error: %v", test.Name, err)
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continue
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}
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actions := fake.Actions()
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if len(actions) != len(test.ExpectedActions) {
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t.Errorf("%s unexpected actions: %v, expected %d actions got %d", test.Name, actions, len(test.ExpectedActions), len(actions))
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continue
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}
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for i, expAction := range test.ExpectedActions {
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action := strings.Split(expAction, ":")
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if actions[i].GetVerb() != action[0] {
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t.Errorf("%s unexpected verb: %+v, expected %s", test.Name, actions[i], expAction)
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}
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if actions[i].GetResource().Resource != action[1] {
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t.Errorf("%s unexpected resource: %+v, expected %s", test.Name, actions[i], expAction)
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}
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}
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}
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}
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func TestDeploymentStop(t *testing.T) {
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name := "foo"
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ns := "default"
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deployment := extensions.Deployment{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: extensions.DeploymentSpec{
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Replicas: 0,
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"k1": "v1"}},
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},
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Status: extensions.DeploymentStatus{
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Replicas: 0,
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},
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}
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template := deploymentutil.GetNewReplicaSetTemplateInternal(&deployment)
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tests := []struct {
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Name string
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Objs []runtime.Object
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StopError error
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ExpectedActions []string
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}{
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{
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Name: "SimpleDeployment",
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Objs: []runtime.Object{
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&extensions.Deployment{ // GET
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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},
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Spec: extensions.DeploymentSpec{
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Replicas: 0,
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"k1": "v1"}},
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},
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Status: extensions.DeploymentStatus{
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Replicas: 0,
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get:deployments", "update:deployments",
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"get:deployments", "list:replicasets", "delete:deployments"},
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},
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{
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Name: "Deployment with single replicaset",
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Objs: []runtime.Object{
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&deployment, // GET
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&extensions.ReplicaSetList{ // LIST
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Items: []extensions.ReplicaSet{
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{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: ns,
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Labels: map[string]string{"k1": "v1"},
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},
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Spec: extensions.ReplicaSetSpec{
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Template: template,
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},
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},
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},
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},
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},
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StopError: nil,
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ExpectedActions: []string{"get:deployments", "update:deployments",
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"get:deployments", "list:replicasets", "get:replicasets",
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"get:replicasets", "update:replicasets", "get:replicasets",
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"get:replicasets", "delete:replicasets", "delete:deployments"},
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},
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}
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for _, test := range tests {
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fake := fake.NewSimpleClientset(test.Objs...)
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reaper := DeploymentReaper{fake.Extensions(), fake.Extensions(), time.Millisecond, time.Millisecond}
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err := reaper.Stop(ns, name, 0, nil)
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if !reflect.DeepEqual(err, test.StopError) {
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t.Errorf("%s unexpected error: %v", test.Name, err)
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continue
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}
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actions := fake.Actions()
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if len(actions) != len(test.ExpectedActions) {
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t.Errorf("%s unexpected actions: %v, expected %d actions got %d", test.Name, actions, len(test.ExpectedActions), len(actions))
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continue
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}
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for i, expAction := range test.ExpectedActions {
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action := strings.Split(expAction, ":")
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if actions[i].GetVerb() != action[0] {
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t.Errorf("%s unexpected verb: %+v, expected %s", test.Name, actions[i], expAction)
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}
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if actions[i].GetResource().Resource != action[1] {
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t.Errorf("%s unexpected resource: %+v, expected %s", test.Name, actions[i], expAction)
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}
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if len(action) == 3 && actions[i].GetSubresource() != action[2] {
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t.Errorf("%s unexpected subresource: %+v, expected %s", test.Name, actions[i], expAction)
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}
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}
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}
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}
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type noSuchPod struct {
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coreclient.PodInterface
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}
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func (c *noSuchPod) Get(name string, options metav1.GetOptions) (*api.Pod, error) {
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return nil, fmt.Errorf("%s does not exist", name)
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}
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type noDeleteService struct {
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coreclient.ServiceInterface
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}
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func (c *noDeleteService) Delete(service string, o *api.DeleteOptions) error {
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|
return fmt.Errorf("I'm afraid I can't do that, Dave")
|
|
}
|
|
|
|
type reaperFake struct {
|
|
*fake.Clientset
|
|
noSuchPod, noDeleteService bool
|
|
}
|
|
|
|
func (c *reaperFake) Core() coreclient.CoreInterface {
|
|
return &reaperCoreFake{c.Clientset.Core(), c.noSuchPod, c.noDeleteService}
|
|
}
|
|
|
|
type reaperCoreFake struct {
|
|
coreclient.CoreInterface
|
|
noSuchPod, noDeleteService bool
|
|
}
|
|
|
|
func (c *reaperCoreFake) Pods(namespace string) coreclient.PodInterface {
|
|
pods := c.CoreInterface.Pods(namespace)
|
|
if c.noSuchPod {
|
|
return &noSuchPod{pods}
|
|
}
|
|
return pods
|
|
}
|
|
|
|
func (c *reaperCoreFake) Services(namespace string) coreclient.ServiceInterface {
|
|
services := c.CoreInterface.Services(namespace)
|
|
if c.noDeleteService {
|
|
return &noDeleteService{services}
|
|
}
|
|
return services
|
|
}
|
|
|
|
func pod() *api.Pod {
|
|
return &api.Pod{ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault, Name: "foo"}}
|
|
}
|
|
|
|
func service() *api.Service {
|
|
return &api.Service{ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault, Name: "foo"}}
|
|
}
|
|
|
|
func TestSimpleStop(t *testing.T) {
|
|
tests := []struct {
|
|
fake *reaperFake
|
|
kind schema.GroupKind
|
|
actions []testcore.Action
|
|
expectError bool
|
|
test string
|
|
}{
|
|
{
|
|
fake: &reaperFake{
|
|
Clientset: fake.NewSimpleClientset(pod()),
|
|
},
|
|
kind: api.Kind("Pod"),
|
|
actions: []testcore.Action{
|
|
testcore.NewGetAction(api.Resource("pods").WithVersion(""), api.NamespaceDefault, "foo"),
|
|
testcore.NewDeleteAction(api.Resource("pods").WithVersion(""), api.NamespaceDefault, "foo"),
|
|
},
|
|
expectError: false,
|
|
test: "stop pod succeeds",
|
|
},
|
|
{
|
|
fake: &reaperFake{
|
|
Clientset: fake.NewSimpleClientset(service()),
|
|
},
|
|
kind: api.Kind("Service"),
|
|
actions: []testcore.Action{
|
|
testcore.NewGetAction(api.Resource("services").WithVersion(""), api.NamespaceDefault, "foo"),
|
|
testcore.NewDeleteAction(api.Resource("services").WithVersion(""), api.NamespaceDefault, "foo"),
|
|
},
|
|
expectError: false,
|
|
test: "stop service succeeds",
|
|
},
|
|
{
|
|
fake: &reaperFake{
|
|
Clientset: fake.NewSimpleClientset(),
|
|
noSuchPod: true,
|
|
},
|
|
kind: api.Kind("Pod"),
|
|
actions: []testcore.Action{},
|
|
expectError: true,
|
|
test: "stop pod fails, no pod",
|
|
},
|
|
{
|
|
fake: &reaperFake{
|
|
Clientset: fake.NewSimpleClientset(service()),
|
|
noDeleteService: true,
|
|
},
|
|
kind: api.Kind("Service"),
|
|
actions: []testcore.Action{
|
|
testcore.NewGetAction(api.Resource("services").WithVersion(""), api.NamespaceDefault, "foo"),
|
|
},
|
|
expectError: true,
|
|
test: "stop service fails, can't delete",
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
fake := test.fake
|
|
reaper, err := ReaperFor(test.kind, fake)
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v (%s)", err, test.test)
|
|
}
|
|
err = reaper.Stop("default", "foo", 0, nil)
|
|
if err != nil && !test.expectError {
|
|
t.Errorf("unexpected error: %v (%s)", err, test.test)
|
|
}
|
|
if err == nil {
|
|
if test.expectError {
|
|
t.Errorf("unexpected non-error: %v (%s)", err, test.test)
|
|
}
|
|
}
|
|
actions := fake.Actions()
|
|
if len(test.actions) != len(actions) {
|
|
t.Errorf("unexpected actions: %v; expected %v (%s)", actions, test.actions, test.test)
|
|
}
|
|
for i, action := range actions {
|
|
testAction := test.actions[i]
|
|
if action != testAction {
|
|
t.Errorf("unexpected action: %#v; expected %v (%s)", action, testAction, test.test)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDeploymentNotFoundError(t *testing.T) {
|
|
name := "foo"
|
|
ns := "default"
|
|
deployment := &extensions.Deployment{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: name,
|
|
Namespace: ns,
|
|
},
|
|
Spec: extensions.DeploymentSpec{
|
|
Replicas: 0,
|
|
Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"k1": "v1"}},
|
|
},
|
|
Status: extensions.DeploymentStatus{
|
|
Replicas: 0,
|
|
},
|
|
}
|
|
template := deploymentutil.GetNewReplicaSetTemplateInternal(deployment)
|
|
|
|
fake := fake.NewSimpleClientset(
|
|
deployment,
|
|
&extensions.ReplicaSetList{Items: []extensions.ReplicaSet{
|
|
{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: name,
|
|
Namespace: ns,
|
|
},
|
|
Spec: extensions.ReplicaSetSpec{
|
|
Template: template,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
)
|
|
fake.AddReactor("get", "replicasets", func(action testcore.Action) (handled bool, ret runtime.Object, err error) {
|
|
return true, nil, ScaleError{ActualError: errors.NewNotFound(api.Resource("replicaset"), "doesn't-matter")}
|
|
})
|
|
|
|
reaper := DeploymentReaper{fake.Extensions(), fake.Extensions(), time.Millisecond, time.Millisecond}
|
|
if err := reaper.Stop(ns, name, 0, nil); err != nil {
|
|
t.Fatalf("unexpected error: %#v", err)
|
|
}
|
|
}
|